/in/foo.cc: In function 'int GET(int, int, int)':
/in/foo.cc:14:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < V.size(); i++) Fa[pot][v = V[i]] = 1;
                     ~~^~~~~~~~~~
/in/foo.cc:16:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < E[pot].size(); i++)
                     ~~^~~~~~~~~~~~~~~
/in/foo.cc: In function 'int findres(int)':
/in/foo.cc:26:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < Dep[dep].size(); i++) {
                     ~~^~~~~~~~~~~~~~~~~
/in/foo.cc:30:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 0; i < V.size(); i++)
                         ~~^~~~~~~~~~